From the cover letter to the Department of Labor's response to my Freedom of Information Act request:
This is in response to your Freedom of Information Act Request for the entire Annual Return/Report Form 5500 Series for plan years from 1991 to 2006. The Employee Benefits Security Administration (EBSA), an agency of the U.S. Department of Labor, has especially programmed a search of its database of filings and the resulting data is captured on the enclosed CDs.
It cost $447.50 (= 8 hours * $40/hr + 750 pages * $0.15/pg. + 15 CDs * $1.00/CD).
November 8, 2011
Field description required for years 1993 through 1998
I am a research associate at a graduate school currently working on a research project that involves extraction of data from F5500 forms. Though I am able to interpret the data in the F5500 forms for the years 1991-1992, I am not able to interpret the data for years 1993-1998 due to the absence of metadata. Please upload the field descriptions/metadata for the forms pertaining to these years.